.css-selector {
    table {
        border: 1px solid #ccc;
        margin-bottom: 20px;
        td + td {
            border-left: 1px solid #ccc;
        }
        tr + tr {
            border-top: 1px solid #ccc;
        }
        td {
            width: 100px;
            height: 100px;
        }
    }
}